Finding the Fourth Proportional to 438,651.73, 605,305.61 and 247,683.97
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Solution
The fourth proportional to 438,651.73, 605,305.61 and 247,683.97 is: 341,784.80
Step by Step Solution
- Step 1: Write the proportion equation
438,651.73 : 605,305.61 = 247,683.97 : x - Step 2: Convert to fraction form
438,651.73/605,305.61 = 247,683.97/x - Step 3: Cross multiply
438,651.73x = 605,305.61 × 247,683.97 - Step 4: Simplify right side
438,651.73x = 149,924,495,309.65 - Step 5: Solve for x
x = 149,924,495,309.65/438,651.73 - Step 6: Final answer
x = 341,784.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.